Prediction of the change in density in systematic series of fibre-forming polymers

被引：2

作者：

Kynin, AT ^{[1
]}

Grebennikov, SF ^{[1
]}

Perepelkin, KE ^{[1
]}

Andreeva, LP ^{[1
]}

机构：

[1] ST PETERSBURG UNIV DESIGN & TECHNOL,ST PETERSBURG,RUSSIA

来源：

FIBRE CHEMISTRY | 1996年 / 28卷 / 02期

关键词：

D O I：

10.1007/BF01058277

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The density of aliphatic polyamides is determined by the concentration of amido groups and additively increases in systematic order. The packing coefficient of aliphatic polyamides, determined by the ratio rho(a)/rho(c), increases with an increase in the concentration of amido groups. The density of cellulose acetate is determined by the concentration of acetate groups and decreases additively in systematic order. The calculation with the group contribution method can be used to predict the density of crystallites of fibre-forming polymers, but this method only gives approximate results for amorphous regions.

引用

页码：73 / 75

页数：3